Question

find the area of the blue shaded region.
22 in
18 in
4 in
5 in
4 in
5 in
a = ? in²

Explanation:

Step1: Calculate area of outer rectangle

Area = length × width = $22×18 = 396$ in²

Step2: Find inner rectangle dimensions

Length = $22 - 4 - 4 = 14$ in; Width = $18 - 5 - 5 = 8$ in

Step3: Calculate area of inner rectangle

Area = $14×8 = 112$ in²

Step4: Subtract inner area from outer area

Shaded area = $396 - 112 = 336$ in²

Answer:

336